MAGNET ASSEMBLIES FOR MOTORS AND GENERATORS

TWT      Motors and Generators       Inertial Devices

Low weight, ultra-high temperature tolerance and excellent reliability make EEC magnets ideal for motors, actuators and generators used in military, commercial and aerospace applications.

Electron Energy has extensive experience in designing and prototyping both axial flux and radial flux rotating machinery. Furthermore, our technology enables us to improve magnetic performance by a unique Halbach and interior magnet design, which has improved benefits in terms of power density, compact size, weight and cooling, compared to conventional machines. This allows the overall size and weight of the motor to be reduced. 

Our SmCo-UHT TM EEC 16 T550 magnets have been used to design a high temperature motor (power 10kW, maximum speed 25krpm) for NASA space power system applications (SBIR Phase II project). HT-550 magnets are ideal for motors that require survivability in extreme high temperature (over 480°C) and high pressure (over 100 atmospheres).

Demagnetization curves of SmCo magnets for ultra-high temperature application

As can be seen from this figure, the extrinsic demagnetization curve is a straight line up to 550°C, which is important for dynamic ultra-high temperature applications. This means that the magnetic flux density is reversible up to 550°C. EEC is identifying opportunities for prototype and beta testing of permanent magnet applications with ultra-high temperature and high-speed conditions.